<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <!-- 引入Vue -->
  <script src="../js/vue.js"></script>
  <title>1.姓名案例插值语法实现</title>
</head>

<body>
  <!-- 创建一个容器 -->
  <div id="root">
    姓:<input type="text" v-model="setInA"><br>
    名:<input type="text" v-model="setInB"><br>
    <!-- .slice(0,3)只取前三个字符 -->
    全名:{{setInA.slice(0,3)}}-{{setInB}}
  </div>

  <script>
    Vue.config.productionTip = false

    // 创建一个实例
    new Vue({
      el: '#root',
      data() {
        return {
          setInA: '张',
          setInB: '三'
        }
      }
    })
  </script>
</body>

</html>